Ключевые слова: beautiful, biology, biotechnology, bright, care, caucasian, chemistry, close, closeup, copy, development, device, discover, discovery, doctor, document, equipment, experiment, female, girl, happy, health, instrument, lab, laboratory, lady, learning, look, magnification, medical, microscope, modern, natural, new, notes, nurse, occupation, one, optical, people, portrait, professional, research, science, scientific, scientist, space, study, technology, work,